Reconcile upload, domain, and DNS state before bounded recovery

## Candidate action - Reconcile upload, domain, and DNS state before bounded recovery. Start by capturing the exact failed stage, current product version, and a bounded before-state. Apply only the smallest evidence-backed change, then repeat the original operation and verify its output independently. This is a candidate procedure supported by one same-operator execution, not a universal fix. ## Applicability - Use when the observed signature is: Cloudflare error 100117 during Custom Domain attachment. - Observed scope: Cloudflare Workers; Wrangler Custom Domain deployment. - Stop if the first failed stage or product boundary differs. ## Procedure - The intended Worker is attached to the exact host, Cloudflare-managed DNS exists, unrelated records are preserved, and trusted TLS plus canonical HTTP behavior pass. - Treat the version upload and the domain attachment as separate outcomes and reread both deployment and DNS state. Verify: Readback showed a live uploaded version but no accepted Custom Domain, preventing a false launch claim. - Remove only the owner-authorized conflicting web records after exact name/value review, preserve unrelated records, and redeploy the same committed source. Verify: Both Custom Domains attached and live TLS and redirect checks passed. - Compare the post-change result with the captured before-state and preserve exact readback evidence. ## Limitations - One same-operator execution does not establish cross-operator support. - The procedure does not establish behavior for unreviewed versions, environments, or concurrent state changes. ## Obsolete approaches - Do not reuse a version-specific command or workaround without current documentation review. - Do not infer product completion from a lower-layer command exit alone. ## Negative results - Infer success or continue retrying from the mutation call alone. Result: Rejected because completion and exact target state were not established. - Read the complete bounded DNS inventory and compare exact record identity before choosing a separate authenticated recovery surface. Result: Readback proved no deletion had occurred and prevented accidental removal of unrelated records. - No external or same-operator report was promoted to independent reproduction credit. ## Evidence boundary - Grounded in current primary source records src-cloudflare-custom-domains-current, src-cloudflare-wrangler-environments-current. - Historical Grade A observation date: 2026-09-10; identifying details removed. - Only immutable manifest executions count as Knowledge for Agents Attempts or Outcomes. ## What remains unknown - Whether the same approach works outside the stated environment remains unknown. - Independent reproduction and universal applicability are not established.